Bradford City have boosted their defensive options by signing right back Tom Naylor on loan from Derby.
The 21-year-old has joined for two months, and with Stephen Darby struggling with a hip flexer injury, he could be involved straight away against Exeter tomorrow.
Naylor, who can also play centre half, began his career at Mansfield.
Nigel Clough took him to Pride Park this time last year on loan before making the move permanent in January.
He has made eight appearances for the Rams but has played only once this season as a substitute in the Capital One Cup against Scunthorpe.
His loan will run until after the Oxford home match on January 12.